Finding the Fourth Proportional to 307.52, 424.17 and 196.82

Step by Step Solution

1. Step 1: Write the proportion equation
   307.52 : 424.17 = 196.82 : x
2. Step 2: Convert to fraction form
   307.52/424.17 = 196.82/x
3. Step 3: Cross multiply
   307.52x = 424.17 × 196.82
4. Step 4: Simplify right side
   307.52x = 83,483.02
5. Step 5: Solve for x
   x = 83,483.02/307.52
6. Step 6: Final answer
   x = 271.48